Prasiolite green amethyst faceted gemstone bead - this is a quality, well cut stone with beautiful faceting and soft green coloring - perfect for a pendant. It measures 20mm in length and 15mm wide. At first glance it appears eye clean, however close examination reveals a couple areas with minor internal crackling or hint of cloudiness which my camera did not capture. It is drilled from side to side at the top, and fits a 26 gage wire. Green amethyst is heat treated to achieve this color.